DTC B1C60

WARNING: This page is about a different variant/trim than selected.

DTC B1C60 : Driver's heater current abnormal high

NOTE:

If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .
The front seat heater control unit does not turn on the front seat heater until the seat core temperature is 185°F (85°C) or less. Make sure the seat core temperature is below 185°F (85°C) before troubleshooting.

DTC Description	DTC
B1C60 Driver's heater current abnormal high

DTC (Front Seat Heater Control Unit)

Problem verification

-1. Clear the DTCs with the HDS.

-2. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.

-3. Check for DTCs with the HDS.

DTC Description	DTC
B1C60 Driver's heater current abnormal high

Is DTC B1C60 indicated?

YES

Go to step 2.

Intermittent failure, the system is OK at this time. Check for loose or poor connections.

DTC check 1

-1. Disconnect the following connector.

Driver's seat heater connector B (2P)

-2. Turn the vehicle to the ON mode.

-3. Clear the DTCs with the HDS.

-4. Check for DTCs with the HDS.

DTC Description	DTC
B1C60 Driver's heater current abnormal high

Is DTC B1C60 indicated?

YES

Go to step 3.

DTC check 2

-1. Disconnect the following connector.

Driver's seat heater connector A (4P)

-2. Turn the vehicle to the ON mode.

-3. Clear the DTCs with the HDS.

-4. Check for DTCs with the HDS.

DTC Description	DTC
B1C60 Driver's heater current abnormal high

Is DTC B1C60 indicated?

YES

Go to step 4.

Shorted wire check (HEATER_DR line)

-1. Disconnect the following connector.

Front seat heater control unit 24P connector

-2. Measure the resistance between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode Front seat heater control unit 24P connector: disconnected Driver's seat heater connector A (4P): disconnected
Test point 1	Front seat heater control unit 24P connector No. 1
Test point 2	Body ground

Is there 1.0 MΩ or more?

YES

Repair a short in the wire.